不同水分条件下甘蔗品种幼苗性状研究

Studies on the Seedling Characters of Sugarcane Varieties under Different Water Condictions

在不同水分处理条件下，研究了６个甘蔗品种幼苗性状的差异。结果表明，在正常供水条件下，抗旱品种表现为叶片较窄，叶片叶绿素含量较高，叶片上下表皮刚毛较多；抗旱品种在复水条件下比正常供水时具有更大的根系表面积和最大的根系伤流量；而品种间切叶自然失水速度和叶片水分饱和亏的差异有待进一步研究。

The seedling character's difference of 6 sugarcane varieties were studied under different water condictions. The results showed that the varieties with drought resistant had narrower leaf, higher chlorophyll content of leaf and more chaeta in up and down epidermal of leaf.The varieties with drought resistant had larger root area and the biggest demage flow rate of root system in comparing rehydration condiction with normal moisture condiction.The difference in the rate of nature lose water of cutting leaf and the water saturation deficit of leaf needed to be further studied.